Friday, June 23rd 2023
Radeon RX 7800 XT Based on New ASIC with Navi 31 GCD on Navi 32 Package?
AMD Radeon RX 7800 XT will be a much-needed performance-segment addition to the company's Radeon RX 7000-series, which has a massive performance gap between the enthusiast-class RX 7900 series, and the mainstream RX 7600. A report by "Moore's Law is Dead" makes a sensational claim that it is based on a whole new ASIC that's neither the "Navi 31" powering the RX 7900 series, nor the "Navi 32" designed for lower performance tiers, but something in between. This GPU will be AMD's answer to the "AD103." Apparently, the GPU features the same exact 350 mm² graphics compute die (GCD) as the "Navi 31," but on a smaller package resembling that of the "Navi 32." This large GCD is surrounded by four MCDs (memory cache dies), which amount to a 256-bit wide GDDR6 memory interface, and 64 MB of 2nd Gen Infinity Cache memory.
The GCD physically features 96 RDNA3 compute units, but AMD's product managers now have the ability to give the RX 7800 XT a much higher CU count than that of the "Navi 32," while being lower than that of the RX 7900 XT (which is configured with 84). It's rumored that the smaller "Navi 32" GCD tops out at 60 CU (3,840 stream processors), so the new ASIC will enable the RX 7800 XT to have a CU count anywhere between 60 to 84. The resulting RX 7800 XT could have an ASIC with a lower manufacturing cost than that of a theoretical Navi 31 with two disabled MCDs (>60 mm² of wasted 6 nm dies), and even if it ends up performing within 10% of the RX 7900 XT (and matching the GeForce RTX 4070 Ti in the process), it would do so with better pricing headroom. The same ASIC could even power mobile RX 7900 series, where the smaller package and narrower memory bus will conserve precious PCB footprint.
Source:
Moore's Law is Dead (YouTube)
The GCD physically features 96 RDNA3 compute units, but AMD's product managers now have the ability to give the RX 7800 XT a much higher CU count than that of the "Navi 32," while being lower than that of the RX 7900 XT (which is configured with 84). It's rumored that the smaller "Navi 32" GCD tops out at 60 CU (3,840 stream processors), so the new ASIC will enable the RX 7800 XT to have a CU count anywhere between 60 to 84. The resulting RX 7800 XT could have an ASIC with a lower manufacturing cost than that of a theoretical Navi 31 with two disabled MCDs (>60 mm² of wasted 6 nm dies), and even if it ends up performing within 10% of the RX 7900 XT (and matching the GeForce RTX 4070 Ti in the process), it would do so with better pricing headroom. The same ASIC could even power mobile RX 7900 series, where the smaller package and narrower memory bus will conserve precious PCB footprint.
169 Comments on Radeon RX 7800 XT Based on New ASIC with Navi 31 GCD on Navi 32 Package?
Edit: In my experience, RDNA 2 is the most stable thing on AMD since the good old GCN days.
I said I can't find people talking about it, maybe you can provide some info?
I also said if the game can run under DX12, why run it under DX11?
Again, have some info? Post it. I found nothing. Until you post info, you lie.So, RTX 4070 and RTX 3080 are AMD GPUs now?
Re read what I posted, don't distort it with nonsense. Can you do it? probably not.
And explain why the GPUs in the link I gave you are ALL RTX cards.Never happened to me. But I did said to you what WAS the issue. You keep ignoring what people reply to you even when it is important information to you - if we accept to believe that you do have AMD hardware. Unfortunately you just want to do the usual anti AMD posts and never admit that something got fixed.
AMD Ryzen 7 7800X3D Review - The Best Gaming CPU - Power Consumption & Efficiency | TechPowerUp
Would you write ONE line that it will not be a lie? The above measurements are in Single Thread load, not idle. Idle obviously will be lower.
Every chiplet AM4 CPU by default uses 12-13W - from being chiplet - plus some more from CCDs, generally ending up at 27-28W. 3600X, 5600X, 5800X3D all have been doing exactly that.
5600G I had for a while, however, went nicely down to ~10W.
Sent from my amd hardware that I do not have cause im lying :P
So much excitement it's almost pathetic.
Have a nice day.Review numbers from Wiz put the 5800X3D at 20W under single thread load and then some of AM4 and AM5 models moving lower even than that.
Based on HW Monitor my R5 5500 goes even under 7W while idle, hovering around 8-9W, while my R5 4600G plays around 10W(under 8W min), which makes sense, considering it's iGPU is also in use.
Still here I am telling you that you lie and still you can't prove me wrong. You threw half a dozen of BS, you proved none. What is the above screenshot? Maybe that DOTA 2 you said? Maybe that Diablo 4? Maybe that 30-40W power consumption? Maybe that things about the driver installation?
Keep hiding behind your finger. No on will ever notice. Don't worry.
Done wasting time with you.
The thread title is this:
Radeon RX 7800 XT Based on New ASIC with Navi 31 GCD on Navi 32 Package?
Stop derailing it with off-topic arguments about other cards, other generations, and game specific scenarios. No further warnings.I'm hoping the 7700 XT and 7800 XT end up good. The 6xxx cards are nearly gone so they should come out soon. I'd do a 4070 but $600 is pretty steep to lose to a 6900 XT
Hanging on (with an itchy trigger finger for a 6900xt) for the 7800xt.
Who amongst you would have a guess at the MRSP of that new card?